Add servo inheritance hierarchy to motor control

MotorControl/servo.py

@@ -0,0 +1,19 @@
+from abc import ABC, abstractmethod
+
+"""
+This module provides a base class for interacting with servo-like code.
+"""
+
+class Servo(ABC):
+    
+    @property
+    @abstractmethod
+    def percent(self):
+        pass
+
+    @percent.setter
+    @abstractmethod
+    def percent(self, forward):
+        pass
+
+